Patents by Inventor Oetter Günter

Oetter Günter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for water wetting oil-wet surfaces
    Patent number: 9689244
    Abstract: Process for water-wetting oil-wet surfaces by applying an aqueous formulation comprising at least one wettability modifier which is a water-soluble ester of an alkoxylated saccharide to the oil-wet surface. The oil-wet surfaces may be any hydrophobic surfaces such as the rocks of subterranean oil-bearing formations.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: June 27, 2017
    Assignee: BASF SE
    Inventors: Vandana Kurkal-Siebert, Oetter Günter, Hans Georg Mainx, Sandra Mack
  • Process for Water Wetting Oil-Wet Surfaces
    Publication number: 20130312975
    Abstract: Process for water-wetting oil-wet surfaces by applying an aqueous formulation comprising at least one wettability modifier which is a water-soluble ester of an alkoxylated saccharide to the oil-wet surface. The oil-wet surfaces may be any hydrophobic surfaces such as the rocks of subterranean oil-bearing formations.
    Type: Application
    Filed: May 22, 2013
    Publication date: November 28, 2013
    Inventors: Vandana Kurkal-Siebert, Oetter Günter, Hans Georg Mainx, Sandra Mack
  • Process for tertiary mineral oil production using surfactant mixtures
    Patent number: 8584750
    Abstract: A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 8 to 30 ethoxy units, which has a polydispersity of from 1.01 to 1.12, and at least one further surfactant is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Christian Bittner, Oetter Günter, Jack Tinsley, Christian Spindler, Gabriela Alvarez Jürgenson, Sophie Vogel
  • Surfactants with a polyethersulfonate structure method for production thereof and use thereof for tertiary crude oil production
    Patent number: 8465668
    Abstract: Surfactants with polyether sulfonate structure, which have a propanonylsulfonic acid group as a head group, a process for preparing such surfactants and their use for tertiary mineral oil extraction.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 18, 2013
    Assignee: BASF SE
    Inventors: Christian Bittner, Oetter Günter, Ulrich Steinbrenner, Jürgen Huff, Marcus Guzmann
  • Surfactants for tertiary mineral oil extraction based on branched alcohols
    Patent number: 8124658
    Abstract: Surfactants of the general formula R1—X where R1 is an aliphatic C17H35-alkyl radical and X is a hydrophilic group, and the mean degree of branching of the R1 radical is from 2.8 to 3.7. Mixtures which comprise such surfactants and the use of such surfactants and of mixtures thereof for tertiary mineral oil extraction.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 28, 2012
    Assignee: BASF SE
    Inventors: Christian Bittner, Oetter Günter, Ulrich Steinbrenner, Marcus Guzmann, Andrea Haunert, Rainer Papp, Jens Rudolph
  • Use of surfactant mixtures for tertiary mineral oil extraction
    Patent number: 7985718
    Abstract: The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon radical composed of from 6 to 11 carbon atoms for tertiary mineral oil extraction.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: July 26, 2011
    Assignee: BASF SE
    Inventors: Ulrich Steinbrenner, Christian Bittner, Oetter Günter, Marcus Guzmann